drivers/net/wireless/ath/ath9k/hif_usb.h

   1 /*
   2  * Copyright (c) 2010-2011 Atheros Communications Inc.
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #ifndef HTC_USB_H
  18 #define HTC_USB_H
  19
  20 /* old firmware images */
  21 #define FIRMWARE_AR7010_1_1     "htc_7010.fw"
  22 #define FIRMWARE_AR9271         "htc_9271.fw"
  23
  24 /* supported Major FW version */
  25 #define MAJOR_VERSION_REQ 1
  26 #define MINOR_VERSION_REQ 3
  27 /* minimal and maximal supported Minor FW version. */
  28 #define FIRMWARE_MINOR_IDX_MAX  4
  29 #define FIRMWARE_MINOR_IDX_MIN  3
  30 #define HTC_FW_PATH     "ath9k_htc"
  31
  32 #define HTC_9271_MODULE_FW  HTC_FW_PATH "/htc_9271-" \
  33                         __stringify(MAJOR_VERSION_REQ) \
  34                         "." __stringify(FIRMWARE_MINOR_IDX_MAX) ".0.fw"
  35 #define HTC_7010_MODULE_FW  HTC_FW_PATH "/htc_7010-" \
  36                         __stringify(MAJOR_VERSION_REQ) \
  37                         "." __stringify(FIRMWARE_MINOR_IDX_MAX) ".0.fw"
  38
  39 extern int htc_use_dev_fw;
  40
  41 #define IS_AR7010_DEVICE(_v) (((_v) == AR9280_USB) || ((_v) == AR9287_USB))
  42
  43 #define AR9271_FIRMWARE       0x501000
  44 #define AR9271_FIRMWARE_TEXT  0x903000
  45 #define AR7010_FIRMWARE_TEXT  0x906000
  46
  47 #define FIRMWARE_DOWNLOAD       0x30
  48 #define FIRMWARE_DOWNLOAD_COMP  0x31
  49
  50 #define ATH_USB_RX_STREAM_MODE_TAG 0x4e00
  51 #define ATH_USB_TX_STREAM_MODE_TAG 0x697e
  52
  53 /* FIXME: Verify these numbers (with Windows) */
  54 #define MAX_TX_URB_NUM  8
  55 #define MAX_TX_BUF_NUM  256
  56 #define MAX_TX_BUF_SIZE 32768
  57 #define MAX_TX_AGGR_NUM 20
  58
  59 #define MAX_RX_URB_NUM  8
  60 #define MAX_RX_BUF_SIZE 16384
  61 #define MAX_PKT_NUM_IN_TRANSFER 10
  62
  63 #define MAX_REG_OUT_URB_NUM  1
  64 #define MAX_REG_IN_URB_NUM   64
  65
  66 #define MAX_REG_IN_BUF_SIZE 64
  67
  68 /* USB Endpoint definition */
  69 #define USB_WLAN_TX_PIPE  1
  70 #define USB_WLAN_RX_PIPE  2
  71 #define USB_REG_IN_PIPE   3
  72 #define USB_REG_OUT_PIPE  4
  73
  74 #define USB_MSG_TIMEOUT 1000 /* (ms) */
  75
  76 #define HIF_USB_MAX_RXPIPES 2
  77 #define HIF_USB_MAX_TXPIPES 4
  78
  79 struct tx_buf {
  80         u8 *buf;
  81         u16 len;
  82         u16 offset;
  83         struct urb *urb;
  84         struct sk_buff_head skb_queue;
  85         struct hif_device_usb *hif_dev;
  86         struct list_head list;
  87 };
  88
  89 #define HIF_USB_TX_STOP  BIT(0)
  90 #define HIF_USB_TX_FLUSH BIT(1)
  91
  92 struct hif_usb_tx {
  93         u8 flags;
  94         u8 tx_buf_cnt;
  95         u16 tx_skb_cnt;
  96         struct sk_buff_head tx_skb_queue;
  97         struct list_head tx_buf;
  98         struct list_head tx_pending;
  99         spinlock_t tx_lock;
 100 };
 101
 102 struct cmd_buf {
 103         struct sk_buff *skb;
 104         struct hif_device_usb *hif_dev;
 105 };
 106
 107 #define HIF_USB_START BIT(0)
 108 #define HIF_USB_READY BIT(1)
 109
 110 struct hif_device_usb {
 111         struct usb_device *udev;
 112         struct usb_interface *interface;
 113         const struct usb_device_id *usb_device_id;
 114         const void *fw_data;
 115         size_t fw_size;
 116         struct completion fw_done;
 117         struct htc_target *htc_handle;
 118         struct hif_usb_tx tx;
 119         struct usb_anchor regout_submitted;
 120         struct usb_anchor rx_submitted;
 121         struct usb_anchor reg_in_submitted;
 122         struct usb_anchor mgmt_submitted;
 123         struct sk_buff *remain_skb;
 124         char fw_name[32];
 125         int fw_minor_index;
 126         int rx_remain_len;
 127         int rx_pkt_len;
 128         int rx_transfer_len;
 129         int rx_pad_len;
 130         spinlock_t rx_lock;
 131         u8 flags; /* HIF_USB_* */
 132 };
 133
 134 int ath9k_hif_usb_init(void);
 135 void ath9k_hif_usb_exit(void);
 136
 137 #endif /* HTC_USB_H */